2CarPros - Car Questions & Answers

1986 Nissan 300ZX Repair Question


Topics covered: Alternator, Fuse, Battery.
Mileage: 223,000 miles.

Asked on July 15, 2012

My alternator wont charge battery

I have recently had the alternator changed and everything was working fine until yesterday i washed the car and when i got back in my battery light was on. Later on while driving the car completely died (most likely because it was just running off the battery. I checked all my grounds and made sure wires were all attached to alternator. im running out of ideas for what the problem could be and need some help!
Avatar Asked by timhillmer

Answer

Replied on July 15, 2012

sounds like the alternator has failed agian.

use a voltmeter and verify 12 volts to the big wire at the back of the alternator. if there is, check the fuses in the fuse box. if all is ok, then you need an alternator

Roy

Tiny Answered by ASEMaster6371 (expert)
24,972 answers provided
Replied on July 15, 2012

i can barely reach the alternator let alone see the wires lol. is there an alternator relay in the relay box

Tiny Response from timhillmer
2 questions asked
Replied on July 15, 2012

no. check te big fuses in the fuse box.

you only need to post 1 time. not necessary for multiple posts. we all read all the posts.

Roy

Tiny Answered by ASEMaster6371 (expert)
24,972 answers provided

Replied on July 15, 2012

i actually didnt mean to post more than one... and all the fuses are good but i had the battery terminals apart to wire in my underglow kit. would a bad ground cause this also. it mainly started after i installed the neon

Tiny Response from timhillmer
2 questions asked
Replied on July 15, 2012

yes it will. check all the grounds for being clean and tight

Roy

Tiny Answered by ASEMaster6371 (expert)
24,972 answers provided
Replied on July 15, 2012

the ground to my negative terminal is all good but where are the other grounds located

Tiny Response from timhillmer
2 questions asked

Replied on July 16, 2012

on the trans bell housing, radiator support.

Roy

Tiny Answered by ASEMaster6371 (expert)
24,972 answers provided